AXA's Swiss employees mistakenly get double December pay

ZURICH (Reuters) - French insurer AXA's 4,300 Swiss employees mistakenly got double their normal December salaries in a Christmas surprise that quickly fell flat when they learned they would not be allowed to keep the extra cash.The mistake, reported in Swiss daily Tages-Anzeiger and confirmed by the insurer on Monday, resulted from an error that occurred between AXA and its house bank, the insurer said. Employees can either return the money or take it as an advance on their January..